Generated by All in One SEO v4.9.10, this is an llms.txt file, used by LLMs to index the site. # Beijing JKHF Since &Tech.Co.,Ltd ## Sitemaps - [XML Sitemap](https://www.jk-seals.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Posts - [What Material Is Used for Seals?](https://www.jk-seals.com/2023/11/28/what-material-is-used-for-seals/) - [How to Choose A Sealing Element?](https://www.jk-seals.com/2023/11/14/how-to-choose-a-sealing-element/) - [How To Select Sealing Components?](https://www.jk-seals.com/2023/10/27/how-to-select-sealing-components/) - [What to Know Before Choosing Sealing Elements](https://www.jk-seals.com/2023/10/13/what-to-know-before-choosing-sealing-elements/) - [Factors To Consider When Selecting Seals](https://www.jk-seals.com/2023/09/26/factors-to-consider-when-selecting-seals/) - [How to Choose the Best Sealing Components?](https://www.jk-seals.com/2023/09/12/how-to-choose-the-best-sealing-components/) - [Things That Need To Be Considered When Making Sealing Decision](https://www.jk-seals.com/2023/08/29/things-that-need-to-be-considered-when-making-sealing-decision/) - [7 Important Factors to Consider When Choosing Oil Seals](https://www.jk-seals.com/2023/08/14/7-important-factors-to-consider-when-choosing-oil-seals/) - [Factors to Consider When Using Sealing Elements](https://www.jk-seals.com/2023/07/13/factors-to-consider-when-using-sealing-elements/) - [What Materials Are Used To Make Retaining Seals?](https://www.jk-seals.com/2023/05/15/what-materials-are-used-to-make-retaining-seals/) - [Which Factor Is Important In Sealing?](https://www.jk-seals.com/2023/03/14/which-factor-is-important-in-sealing/) - [Three Basic Functions of Seals](https://www.jk-seals.com/2023/02/28/three-basic-functions-of-seals/) - [How Do Gaskets Perform As Industrial Seals?](https://www.jk-seals.com/2023/02/16/how-do-gaskets-perform-as-industrial-seals/) - [Common Types of Industrial Seals](https://www.jk-seals.com/2023/01/09/common-types-of-industrial-seals/) - [4 Reasons to Invest in Sealing Components](https://www.jk-seals.com/2022/12/24/4-reasons-to-invest-in-sealing-components/) - [Benefits of Polyurethane Seals](https://www.jk-seals.com/2022/11/26/benefits-of-polyurethane-seals/) - [Types of Sealing Elements](https://www.jk-seals.com/2022/11/12/types-of-sealing-elements/) - [Why Are V-shaped Sealing Rings Used In Mechanical Parts?](https://www.jk-seals.com/2022/09/13/why-are-v-shaped-sealing-rings-used-in-mechanical-parts/) - [How Does The Pressure Seal Work?](https://www.jk-seals.com/2022/08/12/how-does-the-pressure-seal-work/) - [O-Ring Guide](https://www.jk-seals.com/2022/07/28/o-ring-guide/) - [Things You Should Know About Sealing Elements](https://www.jk-seals.com/2022/07/15/things-you-should-know-about-sealing-elements/) - [How To Choose Seal or Gasket Material?](https://www.jk-seals.com/2022/06/23/how-to-choose-seal-or-gasket-material/) - [How Long Do Sealing Elements Last Anyway?](https://www.jk-seals.com/2022/06/08/how-long-do-sealing-elements-last-anyway/) - [Difference Between Gaskets and Seals](https://www.jk-seals.com/2022/04/12/difference-between-gaskets-and-seals/) - [Types of Sealing Element](https://www.jk-seals.com/2022/03/15/types-of-sealing-element/) - [Advantages of Component And Cartridge](https://www.jk-seals.com/2022/02/16/advantages-of-component-and-cartridge/) - [What Are Seals Used for?](https://www.jk-seals.com/2021/11/08/what-are-seals-used-for/) - [Advantages of Oil Tubing As A Mechanical Seal Support Material](https://www.jk-seals.com/2021/10/29/advantages-of-oil-tubing-as-a-mechanical-seal-support-material/) - [What Is the Importance of Sealing?](https://www.jk-seals.com/2021/10/18/what-is-the-importance-of-sealing/) - #post_contentDespite their low cost, seals are often one of the most important components of a product. Seals must be carefully designed and manufactured to ensure superior product performance. - [PU materials and filled PTFE products for ERW PIPE & Tube - Hebei China](https://www.jk-seals.com/2020/12/01/pu-materials-and-filled-ptfe-products-for-erw-pipe-tube-hebei-china/) - [PU materials and filled PTFE products for UOE & ERW Steel Pipe - Tianjin China](https://www.jk-seals.com/2020/12/01/pu-materials-and-filled-ptfe-products-for-uoe-erw-steel-pipe-tianjin-china/) - [PU Sealing components for ERW Steel Pipe - Ukraine](https://www.jk-seals.com/2020/12/01/pu-sealing-components-for-erw-steel-pipe-ukraine/) - [PU & PTFE Sealing components for hydraulic tester on H.F. Welded Tube Mill - United Arab Emirates](https://www.jk-seals.com/2020/12/01/pu-ptfe-sealing-components-for-hydraulic-tester-on-h-f-welded-tube-mill-dubai/) - [PU sealing components for API Pipe - The Philippines](https://www.jk-seals.com/2020/12/01/pu-sealing-components-for-api-pipe-the-philippines/) - [PU sealing components for ERW Pipe & Tube - Korea](https://www.jk-seals.com/2020/12/01/pu-sealing-components-for-erw-pipe-tube-korea/) - [Sealing ring for seamless steel Pipe - Indonesia](https://www.jk-seals.com/2020/12/01/sealing-ring-for-seamless-steel-pipe-indonesia/) - [PU Sealing components for H.F. Welded Tube Mill - Belgium](https://www.jk-seals.com/2020/12/01/pu-sealing-components-for-h-f-welded-tube-mill-belgium/) - [PU & PTFE Sealing components for JOCE Tube Mill - Saudi Arabia](https://www.jk-seals.com/2020/12/01/pu-ptfe-sealing-components-for-joce-tube-mill-saudi-arabia/) - [PU sealing components for SSAW Pipe - Liaoning China](https://www.jk-seals.com/2020/12/01/pu-sealing-components-for-ssaw-pipe-liaoning-china/) - [Hydraulic seals for Spiral Pipe - Brazil](https://www.jk-seals.com/2020/12/01/hydraulic-seals-for-spiral-pipe-brazil/) - [WELCOME TO VISIT JK ON TUBE CHINA 2018 IN SHANGHAI](https://www.jk-seals.com/2020/10/30/welcome-to-visit-jk-on-tube-china-2018-in-shanghai/) - [TUBE & WIRE 2018 IN GERMANY](https://www.jk-seals.com/2020/10/30/tube-wire-2018-in-germany/) - [Tube & Wire 2016 in India](https://www.jk-seals.com/2020/11/01/tube-wire-2016-in-india/) - [How to choose the RIGHT Seals supplier](https://www.jk-seals.com/2020/11/23/how-to-choose-the-right-seals-supplier/) - [Technical seminar of main drive and hinge sealing ring for automatic large shield machine](https://www.jk-seals.com/2020/11/23/technical-seminar-of-main-drive-and-hinge-sealing-ring-for-automatic-large-shield-machine/) - [The home-made application site of main drive seal of shield machine successfully held in Shanghai Hongrun](https://www.jk-seals.com/2020/11/23/the-home-made-application-site-of-main-drive-seal-of-shield-machine-successfully-held-in-shanghai-hongrun/) - [AL-QAHTANI PCK PIPE COMPANY](https://www.jk-seals.com/2020/10/31/518-2/) - [Zhongyou Baoshishun (Qinhuangdao) steel Pipe Co. LTD](https://www.jk-seals.com/2020/11/05/zhongyou-baoshishun-qinhuangdao-steel-pipe-co-ltd/) - [API 426 pipe production line (Tianjin Steel Pipe)](https://www.jk-seals.com/2020/11/05/api-426-pipe-production-line-tianjin-steel-pipe/) - [762 stainless steel welded pipe mill (Jiangsu Wujin)](https://www.jk-seals.com/2020/11/05/762-stainless-steel-welded-pipe-mill-jiangsu-wujin-2/) - [PT KHI Pipe Industries](https://www.jk-seals.com/2020/11/05/pt-khi-pipe-industries/) - [ERW660 pipe line (Wuhan Steel Group)](https://www.jk-seals.com/2020/11/05/erw660-pipe-line-wuhan-steel-group/) - [API PIPE MILL- THE PHILIPPINES](https://www.jk-seals.com/2020/11/05/api-pipe-mill-the-philippines/) - [Domestic shield machine Lord drive seal production](https://www.jk-seals.com/2020/10/30/domestic-shield-machine-lord-drive-seal-production/) - [Association and Beijing jianke hui feng technology company](https://www.jk-seals.com/2020/10/30/association-and-beijing-jianke-hui-feng-technology-company/) - [TUBE & WIRE 2016 IN GERMANY](https://www.jk-seals.com/2020/11/01/tube-wire-2016-in-germany/) - [The effect of all kinds of packing element sealing ring](https://www.jk-seals.com/2020/10/30/504-2/) ## Pages - [Home](https://www.jk-seals.com/) - Beijing JKHF is a high-performance sealing manufacturer that designs and manufactures high-performance sealing, components for many applications. - [Company Profile](https://www.jk-seals.com/company-profile/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Certifications](https://www.jk-seals.com/certifications/) - [Thank you](https://www.jk-seals.com/thank-you/) - [Culture of Safety](https://www.jk-seals.com/culture/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Milestones](https://www.jk-seals.com/milestones/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Contact Us](https://www.jk-seals.com/contact-us/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [About Us](https://www.jk-seals.com/about-us/) - As a high pressure seals supplier, we provide high pressure seals for many applications. - [Terms & Conditions](https://www.jk-seals.com/terms-conditions/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Privacy Policy](https://www.jk-seals.com/privacy-policy/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Shop](https://www.jk-seals.com/shop/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Service & Support](https://www.jk-seals.com/service-support/) - As a pipeline hydraulic seal manufacturer, we provide users with complete solutions to meet the different needs of customers. - [PTFE (POLYTETRAFLUOROETHYLENE, TEFLON®)](https://www.jk-seals.com/ptfe-polytetrafluoroethylene-teflon/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [News](https://www.jk-seals.com/news/) - We are u seal ring supplier, providing u seal ring for various applications to ensure the normal operation of the machine. - [Inventions](https://www.jk-seals.com/inventions/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [How to choose the RIGHT seals supplier](https://www.jk-seals.com/how-to-choose-the-right-seals-supplier/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Exhibitions](https://www.jk-seals.com/exhibitions/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Enquiry Cart](https://www.jk-seals.com/enquiry-cart/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [South America](https://www.jk-seals.com/cases/south-america/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Middle East](https://www.jk-seals.com/cases/middle-east/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Europe](https://www.jk-seals.com/cases/europe/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Asia](https://www.jk-seals.com/cases/asia/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. - [Cases](https://www.jk-seals.com/cases/) - BEIJING JIANKE HUIFENG SCIENCE & TECHNOLOGY is a manufacturer of high-performance sealing for hydraulic tester and pipeline solutions with an emphasis on safety, longevity, and productivity. ## Products - [Large gap ultra-high-pressure sealing components (Type C)](https://www.jk-seals.com/product/large-gap-ultra-high-pressure-sealing-components-type-c/) - A sealing element or seal is a component or structure that helps to restrict or prevent the unintentional transition of a substance from one space to another. - [PY-type end-face sealing ring](https://www.jk-seals.com/product/py-type-end-face-sealing-ring/) - Mechanical seal rings are used to seal the gap between the rotating shaft and the stationary housing in equipment such as pumps and mixers, so that liquid cannot escape through the gap. - [Large gap ultra-high-pressure sealing components (Type D)](https://www.jk-seals.com/product/large-gap-ultra-high-pressure-sealing-components-type-d/) - High pressure oil seals are specialized components used to prevent fluid or gas leakage in systems that operate under high pressure conditions. High Pressure Oil Seal The high pressure oil seal assembly consists of a polyurethane seal and a fan-shaped support. It is mainly used for pressure testing of steel pipe by hydraulic tester. In the non-working condition, a gap exists between the seal and the surface of the steel pipe. During the test, hydraulic oil is - [Large gap ultra-high-pressure sealing components (Type CD )](https://www.jk-seals.com/product/large-gap-ultra-high-pressure-sealing-components-type-cd/) - Ultra Pressure Components is mainly used in hydro-static testing machines for pressure tests of steel pipes, it is applicable to the pressure testing of casings, tubings, natural gas pipes and other steel pipes. - [Foot-shape slip ring combined seal - Slip ring combined seal](https://www.jk-seals.com/product/foot-shape-slip-ring-combined-seal-slip-ring-combined-seal/) - A slip ring seal is typically made up of a stationary component and a rotating component, and is designed to maintain a sealing interface as the shaft rotates. - [P-Type plain washer end-face sealing](https://www.jk-seals.com/product/p-type-plain-washer-end-face-sealing/) - [Sealing components (Type U)](https://www.jk-seals.com/product/sealing-components-type-u/) - #post_contentThe u ring seal makes use of the advantages of Polyurethane, such as high strength, hardness, good elasticity and durability, it has high sealing performance, abrasion resistance, and low deformation. - [Internal expanding sealing components (Type NM)](https://www.jk-seals.com/product/internal-expanding-sealing-components-type-nm/) - [PYG-type end-face sealing ring](https://www.jk-seals.com/product/pyg-type-end-face-sealing-ring/) - [Tooth-shape slip ring combined seal --Slip ring combined seal](https://www.jk-seals.com/product/tooth-shape-slip-ring-combined-seal-slip-ring-combined-seal/) - [C-shape slip ring combined seal--Slip ring combined seal](https://www.jk-seals.com/product/c-shape-slip-ring-combined-seal-slip-ring-combined-seal/) - [J-shape slip ring combined seal --Slip ring combined seal](https://www.jk-seals.com/product/j-shape-slip-ring-combined-seal-slip-ring-combined-seal/) - [U-shape slip ring combined seal --Slip ring combined seal](https://www.jk-seals.com/product/u-shape-slip-ring-combined-seal-slip-ring-combined-seal/) - [Step seal --Slip ring combined seal](https://www.jk-seals.com/product/step-seal-slip-ring-combined-seal/) - [Combined dust seal --Slip ring combined seal](https://www.jk-seals.com/product/combined-dust-seal-slip-ring-combined-seal/) - [Right angle slip ring combined seal--Slip ring combined seal](https://www.jk-seals.com/product/right-angle-slip-ring-combined-seal-slip-ring-combined-seal/) - [Glyd ring --Slip ring combined seal](https://www.jk-seals.com/product/glyd-ring-slip-ring-combined-seal/) - [Sealing ring (Type V)](https://www.jk-seals.com/product/sealing-ring-type-v/) - [Z-Type expansion ring](https://www.jk-seals.com/product/z-type-expansion-ring/) ## Categories - [News](https://www.jk-seals.com/category/news/) - [Exhibitions](https://www.jk-seals.com/category/exhibitions/) - [Cases](https://www.jk-seals.com/category/cases/) - [Asia](https://www.jk-seals.com/category/asia/) - [Europe](https://www.jk-seals.com/category/europe/) - [South America](https://www.jk-seals.com/category/south-america/) - [Middle East](https://www.jk-seals.com/category/middle-east/) ## Product categories - [PU material seal](https://www.jk-seals.com/product-category/pu-material-seal/) - [Large gap ultra high pressure sealing components](https://www.jk-seals.com/product-category/large-gap-ultra-high-pressure-sealing-components/) - [Sealing ring for the plane on water filling and air exhaust test head](https://www.jk-seals.com/product-category/sealing-ring-for-the-plane-on-water-filling-and-air-exhaust-test-head/) - [Sealing ring for Seamless steel pipe](https://www.jk-seals.com/product-category/sealing-ring-for-seamless-steel-pipe/) - [The internal expansion for pipe threading machine](https://www.jk-seals.com/product-category/the-internal-expansion-for-pipe-threading-machine/) - [Products](https://www.jk-seals.com/product-category/products/) - [Sealing ring for JOCE](https://www.jk-seals.com/product-category/sealing-ring-for-joce/) - [PTFE Material Seal](https://www.jk-seals.com/product-category/ptfe-material-seal/) - [Sealing Ring For ERW Steel Pipe](https://www.jk-seals.com/product-category/sealing-ring-for-erw-steel-pipe/) ## Product tags - [Z-Type expansion ring](https://www.jk-seals.com/product-tag/z-type-expansion-ring/)